Specifications

2-4 GPIB SETUP AND
INTERCONNECTION
All functions of the MS462XX (except power on/off and initialization of
the hard disk) can be controlled remotely by an external
computer/controller via the IEEE-488.2 GPIB. The information in this
section pertains to interface connections and cable requirements for
the rear panel GPIB connector. Refer to the MS462XX Programming
Manual, Anritsu part number 10410-00204, for information about
remote operation of the MS462XX using the GPIB and Ethernet.
The MS462XX GPIB operates with any IBM PC compatible
computer/controller equipped with a National Instruments
GPIB-PCII/IIA interface card and software.
Interface
Connector
Interface between the MS462XX and other devices
on the GPIB is via a standard 24-wire GPIB inter
-
face cable. For proper operation, order APN 2100-1,
-2, -4, or -5 (1, 2, 4, or 0.5 meter length) cables
through your local sales representative. This cable
uses a double-sided connector; one connector face is
a plug, the other a receptacle. These double-function
connectors allow parallel connection of two or more
cables to a single instrument connector. The pin as-
signments for the rear panel GPIB connector are
shown in Figure B-3 located in Appendix B.
Cable Length
Restrictions
The GPIB system can accommodate up to 15 instru-
ments at any one time. To achieve design perfor-
mance on the bus, proper timing and voltage level
relationships must be maintained. If either the ca-
ble length between separate instruments or the ac
-
cumulated cable length between all instruments is
too long, the data and control lines cannot be driven
properly and the system may fail to perform. Cable
length restrictions are as follows:
q
No more than 15 instruments may be
installed on the bus
q
Total accumulative cable length in meters
may not exceed two times the number of bus
instruments or 20 meters—whichever is less
NOTE
For low EMI applications, the GPIB cable
should be a fully shielded type with
well-grounded metal-shell connectors. Use
Anritsu Model 2100-series cables.
GPIB SETUP AND INSTALLATION
INTERCONNECTION
2-4 MS462XX OM